Greenheck 385253 Vari-Green Control Transformer 85-277VAC to 24VDC with 0-10VDC Signal

The Greenheck 385253 Vari-Green Control Transformer is designed to provide 24-volt DC power to Vari-Green motors and controls from existing line voltage (85-277VAC) at the fan location. This versatile transformer is essential for operating Vari-Green variable speed motor systems with 0-10VDC control signals for precise fan speed control.

Key Features:

• Wide input voltage range: 85-277VAC primary to 24VDC secondary
• Supports 0-10VDC analog control signal for variable speed operation
• Two dry auxiliary contacts (one normally open, one normally closed) for motorized damper control or device interlocking
• Auxiliary contacts change state at 1.85VDC threshold for automated damper operation
• Provides up to 400mA at 24VDC for powering remote control devices
• Signal pass-through capability when external devices use separate power sources
• Factory-mountable for integrated Vari-Green motor control systems

This control transformer is specifically engineered for Greenheck's Vari-Green energy-efficient ventilation systems, providing reliable power conversion and integrated control capabilities for demand-controlled ventilation applications in commercial buildings, restaurants, and industrial facilities.